DanTysk

The wind farm covers an area of 70 square kilometres. The rotor diameter is 120 metres and the tip height reaches 148 metres. The foundations are monopiles, which were installed in water depths of 21 to 32 metres. The first foundation was installed in February 2014 and the wind farm produced its first kilowatt hour in December 2014.

88 power cables with a total length of 108 kilometres transport the power from the wind turbines initially on the 33kV AC voltage level to the wind farm's own substation. From there, the alternating current reaches the converter station of the grid operator Tennet at a higher voltage level of 155 kV. In order to transport the electricity over a distance of about 200 kilometres as loss-free as possible to shore to Büttel in Schleswig-Holstein, the alternating current in the Tennet converter station is converted back into direct current.

Germany's first offshore hotel

The two neighbouring wind farms DanTysk and Sandbank benefit from a unique operating concept in the North Sea. An offshore accommodation platform, connected by a bridge to the DanTysk substation, accommodates 50 service technicians. In shifts, they provide maintenance and service work 365 days a year.

The service teams work and live on six floors. These include not only offices and bedrooms, but also workshops, canteen, gym, cinema and an on-board hospital – and of course a breathtaking view. 

DanTysk is a joint venture between Vattenfall (51%) and Stadtwerke München (49%).